Directional drilling plan with 12.25" pilot hole, 22" hole hole opener and 24" underreamer
This article describes an example of a directional drilling plan. The hole will be kicked-off below the 26" conductor shoe. The hole will be directionally drilled to the 18 5/8" casing setting depth with the 12 1/4" assembly. Thereafter the hole will be opened up with a 22" hole opener assembly or under reamed to 24".
12 1/4" Kick-Off BHA
12 1/4" Bit
9 5/8" PowerPack motor w/ 12 1/8" stabiliser . . .